AirHint found the following cheapest return flights from Paris (CDG) to Brussels (BRU) in December 2025 (see full year).

Return flights

11 Dec - 15 Dec	easyJet
18 Dec - 07 Jan	Vueling Airlines
08 Dec - 10 Dec	easyJet
08 Dec - 17 Dec	easyJet
18 Dec - 06 Jan	Vueling Airlines
22 Dec - 08 Jan	Vueling Airlines
22 Dec - 12 Jan	Vueling Airlines
16 Dec - 06 Jan	Vueling Airlines
17 Dec - 04 Jan	Vueling Airlines
31 Dec - 13 Jan	Vueling Airlines
18 Dec - 08 Jan	Vueling Airlines
31 Dec - 21 Jan	Vueling Airlines
31 Dec - 19 Jan	Vueling Airlines
06 Dec - 07 Dec	easyJet
13 Dec - 14 Dec	easyJet
19 Dec - 23 Dec	KLM
25 Dec - 31 Dec	KLM
21 Dec - 31 Dec	KLM
22 Dec - 31 Dec	KLM
05 Dec - 07 Dec	easyJet

Also check the deals for one-way flights from Paris to Brussels in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Paris to Brussels in December from 170€

Return flights